Feeding device for roll-grinding machines.



L. R; HEIM. FEEDING DEVICE FORIROLL snmoms MACHINES, APPLICATION HLiD'IMl. 6. 1915- Patented Jan. 2, 1917.

WITNESSES INVENTOB Arrow/5'!" 7 .citinen of chines forming nitrides STTES PATENT Lewis KEITH, or menswear, oonnnowicnn nsswnon T THE BALL enrn semen .enezsin's someone, or BANBURY, GONNEGTXGUT, A conic-omiss on 01E" con NEGTIGUT.

KEEEHING DEVICE FGR ROLL'GRINDING MACHINES.

To all whom it may concern.-

Be it known that 1, Lewis B. HEiM, a h 1 I the United States, residing at .Uanouiy, county of Foirfield, State of Connecticut, have invented an Improvement in Feeding Devices for Roll-Grinding Ma,- chines; of which the following is a specification.

il1is invention has for its object to pro- "ide a simple, inexpensive and durable feedlng device especially adapted for use in connection with the type of roll. grinding me.-

the subject of my applies-- tion for Letters Patent, Serial No. 12,524, filed of even date herewith, which will con duct the rolls to the grinding and regulating Wheels and will support theni while being operated upon, end'in which the only part subjected to appreciable wear may be turned annumber of times and then. reversed to provide. new wearing surfaces at an expense so trifling as to benegligible.

. the rolls down upon the carrier iii) looking With the above and other'objects in view 1 have devised the novel roll feeding device which I will now describe, referring to the eccoinpenying drawing fiorming a part of this specification and using reference cherocters to indicate the several partsz- Figure l. is an elevation of'myfiiovel feed ing device, one of the operative wheels appearing in elevation; Fig. 2 51 plan view showing both of the operative wheels, and: section on an enlarged scale of the roll carrier on the line 3-8 in Fig. 1,

in the direction of the arrows.

In. the type of mecliincs forming the sub-- 'ject 03% my solid application referred to, the grinding operation is effected by passingthe rolls between the faces of grinding and regulating wheels. T he grindin wheel, rotating at c relatively high spec acts to hold. and grind them, and the regulating wheel, rotating in the opposite direction at. a relatively low speed, acts to cause n S a 5". and uniform. 1'0- totion of the rolls w .1 be; cg operated upon, but at a much lower surface speed than the grinding: wheel, thereby insuring that the rolls be ground to perfectly cylindrical form and avoiding the possibility of flat faces.

denotes the grinding wheel and 11 e.-

wheel which l. term the. regulating wheel, as

it regulates the speed at which the roll is rotated while being operated upon.

Tidy novel feeding device is constructed as Specification of Letters Eetent;

other, ordinary ring-shaped w Patented Jen.

Application filed March 8, 1915. Serial No. 12,528.

.follows: 12 denotes a block or body shown an inverted as substantially inthe iornnot L, which is adapted to be hl'xited or otherwise secured to an adjustablestandard, not sho wln'or to any suitable portion of a grindmg machine.

13 denotes the carrier which e bar lying, in a 510,714 in the body. The carrier is shown as pivoted between ears 15 on me body to enable it to be swung in the vertical plane in order to give to it the most conveir ient degree of inclination. in feeding; the rolls to be operated upon to the grindiiig and regulating wheels. The carrier is shown, as locked :itfthe required degree ofinclinstion by aset screw 16.

1.7 denotes guides ordinarily mode of sheet motel which are secured to the body icy screws 18 on opposite sides of The guides are shown as provided. with flanges 19, made conveniently flaring ct their outer ends, between which the rolls are placed, resting upon the carrier. The guides are preferably provided with slots 20 through which the screws pass, so as to pen.

mit adjustment of the guides to ord or from. each other. A

It will of course be obvious that the upon the carrier will be at the forward end thereof, that is, the portion which supporti therolls and'upon which they-ere rotated during the grinding operation. in order to reduce the expenseceused by this wear, to the minimum, 1 provide the upper of the carrier with a groove 21' which receives a hardened wearing strip 22. This wee-ring. strip is preferably made, rectangular in cross-section so as to provide four wearing surfaces, each of which may be used nntil a groove is worn therein, when the strip is given a quarter turn and a new wear ng surface provided. When the four wear ng ourfaces at one end of the strip hsvscecli. been used as long as practicable, fool new ween I surfaces are provided hychenging ends ing with the strip.

In practice wheels are set slightly. "obliquely to eech heels being used. The carrier lies between the operative wheels on the side where their faces come into closest proximity and extends past the inner edges of the opei'onve car i' ces.

23 denotes e itshsped trough secured to ill the carrier.

the grinding and regulating the inner end of the carrier into which the rolls drop after the surfaces of the operative wheels and by which. they are conducted outward between the faces of the wheels on the opposite side of the center, which on that side he at n ter distance apart, as clearly shown in 1g The operation is as follows: The rolls to be operated upon are placed upon the carrier between the guides either mechanically or manually and are fed forward. As soon as a roll is picked up by the operative wheels it is drawn forward thereby, being rotated upon the carrier, and at the same time drawn forward toward the open center of the wheels. As soon as the grinding operation -is completed the rolls pass from the carrier to the trough and out between the faces of the grinding and regulating wheels on the op osite side of the center, as clearly shown.

Iaving thus described my invention I claim:

l. A roll feeding device for grinding mchines comprising a slotted body, a carrier pivoted in the slot and adjustable guides secured to the body on opposite sides of the slot.

2. A roll feeding device for grinding machines comp'rising a carrier by which the rolls are-conducted to a position to be operated upon and by which they are carried bust the operative surfaces and a trough passing the inner edges of secured to the inner end of the carrier by which the ground rolls are conducted away from the operative surfaces.

A roll feeding device for grinding machines comprising a carrier by which the rolls are conducted to a position to be operated upon and by which they are carried past the operative surfaces, :1 wearing strip in said carrier, and a trough secured to the inner end of the carrier by which the ground rolls are conducted away from the operative surfaces.

4. A roll feeding device for grinding machines comprising a slotted body, a carrier pivoted in the slot, said carrier being provided with a groove, and a removable wearing strip in said groove having a plurality of faces which may be used successively.

5. A roll feeding device for grinding machines comprising a body having a slot, 8. carrier pivoted in said slot to swin vertical plane and means carrier at any required adjustment.

6. A roll feeding device for grinding machines comprising a body, a carrier and a. removable wearing strip in the carrier havin a plurality of wearing surfaces.

11 testimon y whereof I affix my signature in presence or two witnesses.

LEWIS R. HEIM.

itnesses:

, H. W. Mmnn, E. M. Convex.

in the i for locking the P 

